Jorge, E., Pereira, F.S., Baptista, R., Monteiro, P., Santos, L., Fonseca, I., Providência, L.A. and Saldanha, M.H. 2011. Anticoagulation in elderly patients with atrial fibrillation: from the guidelines to the daily medical practice. Acta Médica Portuguesa. 24, (Dec. 2011), 293–300. DOI:https://doi.org/10.20344/amp.1488.